The latest ban is in response to a new Oklahoma law that allows adoption agencies to refuse to place children in homes with same-sex parents based on moral or religious grounds, reports San Francisco Chronicle.

The Oklahoma ban will come into effect on June 22.

Attorney general Xavier Becerra told the newspaper: “California taxpayers are taking a stand against bigotry. California will not use state resources to support states that pass discriminatory laws.

When asked whether California would cease to do business with states like Texas, the second largest state economy in the US behind Becerra’s state, Becerra responded at the time: “Texas is a big state… [but] the consequences are real” for LGBT people in Texas and elsewhere.

He added that he would not rule out adding more states to the list if they introduce discriminatory legislation.